scala.reflect.api

# Types

#### trait Types extends AnyRef

EXPERIMENTAL

A trait that defines types and operations on them.

Type instances represent information about the type of a corresponding symbol. This includes its members (methods, fields, type parameters, nested classes, traits, etc.) either declared directly or inherited, its base types, its erasure and so on. Types also provide operations to test for type conformance or equivalence or for widening.

To instantiate a type, most of the time, the scala.reflect.api.TypeTags#typeOf method can be used. It takes a type argument and produces a `Type` instance which represents that argument. For example:

    scala> typeOf[List[Int]]
    res0: reflect.runtime.universe.Type = scala.List[Int]

In this example, a scala.reflect.api.Types#TypeRef is returned, which corresponds to the type constructor `List` applied to the type argument `Int`.

Note: Method `typeOf` does not work for types with type parameters, such as `typeOf[List[A]]` where `A` is a type parameter. In this case, use scala.reflect.api.TypeTags#weakTypeOf instead.

For other ways to instantiate types, see the corresponding section of the Reflection Guide.

##### Common Operations on Types

Types are typically used for type conformance tests or are queried for declarations of members or inner types.

- Subtyping Relationships can be tested using `<:<` and `weak_<:<`.
- Type Equality can be checked with `=:=`. It's important to note that `==` should not be used to compare types for equality-- `==` can't check for type equality in the presence of type aliases, while `=:=` can.

Types can be queried for members and declarations by using the `members` and `declarations` methods (along with their singular counterparts `member` and `declaration`), which provide the list of definitions associated with that type. For example, to look up the `map` method of `List`, one can do:

    scala> typeOf[List[_]].member("map": TermName)
    res1: reflect.runtime.universe.Symbol = method map

For more information about `Type`s, see the Reflection Guide: Symbols, Trees, and Types

Self Type
  Universe
Source
  Types.scala

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JavaUniverse, JavaUniverse, Universe, Universe
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### Type Members

1. #### abstract type AnnotatedType >: Null <: Universe.Type with Universe.AnnotatedTypeApi

   The `AnnotatedType` type signature is used for annotated types of the for `<type> @<annotation>`.

2. #### trait AnnotatedTypeApi extends Universe.TypeApi

   The API that all annotated types support.

3. #### abstract class AnnotatedTypeExtractor extends AnyRef

   An extractor class to create and pattern match with syntax `AnnotatedType(annotations, underlying, selfsym)`.

4. #### abstract type BoundedWildcardType >: Null <: Universe.Type with Universe.BoundedWildcardTypeApi

   BoundedWildcardTypes, used only during type inference, are created in two places:

5. #### trait BoundedWildcardTypeApi extends Universe.TypeApi

   The API that all this types support.

6. #### abstract class BoundedWildcardTypeExtractor extends AnyRef

   An extractor class to create and pattern match with syntax `BoundedWildcardTypeExtractor(bounds)` with `bounds` denoting the type bounds.

7. #### abstract type ClassInfoType >: Null <: Universe.CompoundType with Universe.ClassInfoTypeApi

   The `ClassInfo` type signature is used to define parents and declarations of classes, traits, and objects.

8. #### trait ClassInfoTypeApi extends Universe.TypeApi

   The API that all class info types support.

9. #### abstract class ClassInfoTypeExtractor extends AnyRef

   An extractor class to create and pattern match with syntax `ClassInfo(parents, decls, clazz)` Here, `parents` is the list of parent types of the class, `decls` is the scope containing all declarations in the class, and `clazz` is the symbol of the class itself.

10. #### abstract type CompoundType >: Null <: Universe.Type

    A subtype of Type representing refined types as well as `ClassInfo` signatures.

11. #### abstract type ConstantType >: Null <: Universe.SingletonType with Universe.ConstantTypeApi

    The `ConstantType` type is not directly written in user programs, but arises as the type of a constant.

12. #### trait ConstantTypeApi extends Universe.TypeApi

    The API that all constant types support.

13. #### abstract class ConstantTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `ConstantType(constant)` Here, `constant` is the constant value represented by the type.

14. #### abstract type ExistentialType >: Null <: Universe.Type with Universe.ExistentialTypeApi

    The `ExistentialType` type signature is used for existential types and wildcard types.

15. #### trait ExistentialTypeApi extends Universe.TypeApi

    The API that all existential types support.

16. #### abstract class ExistentialTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `ExistentialType(quantified, underlying)`.

17. #### abstract type MethodType >: Null <: Universe.Type with Universe.MethodTypeApi

    The `MethodType` type signature is used to indicate parameters and result type of a method

18. #### trait MethodTypeApi extends Universe.TypeApi

    The API that all method types support.

19. #### abstract class MethodTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `MethodType(params, respte)` Here, `params` is a potentially empty list of parameter symbols of the method, and `restpe` is the result type of the method.

20. #### abstract type NullaryMethodType >: Null <: Universe.Type with Universe.NullaryMethodTypeApi

    The `NullaryMethodType` type signature is used for parameterless methods with declarations of the form `def foo: T`

21. #### trait NullaryMethodTypeApi extends Universe.TypeApi

    The API that all nullary method types support.

22. #### abstract class NullaryMethodTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `NullaryMethodType(resultType)`.

23. #### abstract type PolyType >: Null <: Universe.Type with Universe.PolyTypeApi

    The `PolyType` type signature is used for polymorphic methods that have at least one type parameter.

24. #### trait PolyTypeApi extends Universe.TypeApi

    The API that all polymorphic types support.

25. #### abstract class PolyTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `PolyType(typeParams, resultType)`.

26. #### abstract type RefinedType >: Null <: Universe.CompoundType with Universe.RefinedTypeApi

    The `RefinedType` type defines types of any of the forms on the left, with their RefinedType representations to the right.

27. #### trait RefinedTypeApi extends Universe.TypeApi

    The API that all refined types support.

28. #### abstract class RefinedTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `RefinedType(parents, decls)` Here, `parents` is the list of parent types of the class, and `decls` is the scope containing all declarations in the class.

29. #### abstract type SingleType >: Null <: Universe.SingletonType with Universe.SingleTypeApi

    The `SingleType` type describes types of any of the forms on the left, with their TypeRef representations to the right.

30. #### trait SingleTypeApi extends Universe.TypeApi

    The API that all single types support.

31. #### abstract class SingleTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `SingleType(pre, sym)` Here, `pre` is the prefix of the single-type, and `sym` is the stable value symbol referred to by the single-type.

32. #### abstract type SingletonType >: Null <: Universe.Type

    The type of Scala singleton types, i.

33. #### abstract type SuperType >: Null <: Universe.SingletonType with Universe.SuperTypeApi

    The `SuperType` type is not directly written, but arises when `C.super` is used as a prefix in a `TypeRef` or `SingleType`.

34. #### trait SuperTypeApi extends Universe.TypeApi

    The API that all super types support.

35. #### abstract class SuperTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `SingleType(thistpe, supertpe)`

36. #### abstract type ThisType >: Null <: Universe.SingletonType with Universe.ThisTypeApi

    A singleton type that describes types of the form on the left with the corresponding `ThisType` representation to the right:

37. #### trait ThisTypeApi extends Universe.TypeApi

    The API that all this types support.

38. #### abstract class ThisTypeExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `ThisType(sym)` where `sym` is the class prefix of the this type.

39. #### abstract type Type >: Null <: Universe.TypeApi

    The type of Scala types, and also Scala type signatures.

40. #### abstract class TypeApi extends AnyRef

    The API of types.

41. #### abstract type TypeBounds >: Null <: Universe.Type with Universe.TypeBoundsApi

    The `TypeBounds` type signature is used to indicate lower and upper type bounds of type parameters and abstract types.

42. #### trait TypeBoundsApi extends Universe.TypeApi

    The API that all type bounds support.

43. #### abstract class TypeBoundsExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `TypeBound(lower, upper)` Here, `lower` is the lower bound of the `TypeBounds` pair, and `upper` is the upper bound.

44. #### abstract type TypeRef >: Null <: Universe.Type with Universe.TypeRefApi

    The `TypeRef` type describes types of any of the forms on the left, with their TypeRef representations to the right.

45. #### trait TypeRefApi extends Universe.TypeApi

    The API that all type refs support.

46. #### abstract class TypeRefExtractor extends AnyRef

    An extractor class to create and pattern match with syntax `TypeRef(pre, sym, args)` Here, `pre` is the prefix of the type reference, `sym` is the symbol referred to by the type reference, and `args` is a possible empty list of type argumenrts.

### Abstract Value Members

1. #### abstract val AnnotatedType: Universe.AnnotatedTypeExtractor

   The constructor/extractor for `AnnotatedType` instances.

2. #### implicit abstract val AnnotatedTypeTag: ClassTag[Universe.AnnotatedType]

   A tag that preserves the identity of the `AnnotatedType` abstract type from erasure.

   A tag that preserves the identity of the `AnnotatedType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

3. #### abstract val BoundedWildcardType: Universe.BoundedWildcardTypeExtractor

   The constructor/extractor for `BoundedWildcardType` instances.

4. #### implicit abstract val BoundedWildcardTypeTag: ClassTag[Universe.BoundedWildcardType]

   A tag that preserves the identity of the `BoundedWildcardType` abstract type from erasure.

   A tag that preserves the identity of the `BoundedWildcardType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

5. #### abstract val ClassInfoType: Universe.ClassInfoTypeExtractor

   The constructor/extractor for `ClassInfoType` instances.

6. #### implicit abstract val ClassInfoTypeTag: ClassTag[Universe.ClassInfoType]

   A tag that preserves the identity of the `ClassInfoType` abstract type from erasure.

   A tag that preserves the identity of the `ClassInfoType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

7. #### implicit abstract val CompoundTypeTag: ClassTag[Universe.CompoundType]

   A tag that preserves the identity of the `CompoundType` abstract type from erasure.

   A tag that preserves the identity of the `CompoundType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

8. #### abstract val ConstantType: Universe.ConstantTypeExtractor

   The constructor/extractor for `ConstantType` instances.

9. #### implicit abstract val ConstantTypeTag: ClassTag[Universe.ConstantType]

   A tag that preserves the identity of the `ConstantType` abstract type from erasure.

   A tag that preserves the identity of the `ConstantType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

10. #### abstract val ExistentialType: Universe.ExistentialTypeExtractor

    The constructor/extractor for `ExistentialType` instances.

11. #### implicit abstract val ExistentialTypeTag: ClassTag[Universe.ExistentialType]

    A tag that preserves the identity of the `ExistentialType` abstract type from erasure.

    A tag that preserves the identity of the `ExistentialType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

12. #### abstract val MethodType: Universe.MethodTypeExtractor

    The constructor/extractor for `MethodType` instances.

13. #### implicit abstract val MethodTypeTag: ClassTag[Universe.MethodType]

    A tag that preserves the identity of the `MethodType` abstract type from erasure.

    A tag that preserves the identity of the `MethodType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

14. #### abstract val NoPrefix: Universe.Type

    This constant is used as a special value denoting the empty prefix in a path dependent type.

    This constant is used as a special value denoting the empty prefix in a path dependent type. For instance `x.type` is represented as `SingleType(NoPrefix, <x>)`, where `<x>` stands for the symbol for `x`.

15. #### abstract val NoType: Universe.Type

    This constant is used as a special value that indicates that no meaningful type exists.

16. #### abstract val NullaryMethodType: Universe.NullaryMethodTypeExtractor

    The constructor/extractor for `NullaryMethodType` instances.

17. #### implicit abstract val NullaryMethodTypeTag: ClassTag[Universe.NullaryMethodType]

    A tag that preserves the identity of the `NullaryMethodType` abstract type from erasure.

    A tag that preserves the identity of the `NullaryMethodType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

18. #### abstract val PolyType: Universe.PolyTypeExtractor

    The constructor/extractor for `PolyType` instances.

19. #### implicit abstract val PolyTypeTag: ClassTag[Universe.PolyType]

    A tag that preserves the identity of the `PolyType` abstract type from erasure.

    A tag that preserves the identity of the `PolyType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

20. #### abstract val RefinedType: Universe.RefinedTypeExtractor

    The constructor/extractor for `RefinedType` instances.

21. #### implicit abstract val RefinedTypeTag: ClassTag[Universe.RefinedType]

    A tag that preserves the identity of the `RefinedType` abstract type from erasure.

    A tag that preserves the identity of the `RefinedType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

22. #### abstract val SingleType: Universe.SingleTypeExtractor

    The constructor/extractor for `SingleType` instances.

23. #### implicit abstract val SingleTypeTag: ClassTag[Universe.SingleType]

    A tag that preserves the identity of the `SingleType` abstract type from erasure.

    A tag that preserves the identity of the `SingleType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

24. #### implicit abstract val SingletonTypeTag: ClassTag[Universe.SingletonType]

    A tag that preserves the identity of the `SingletonType` abstract type from erasure.

    A tag that preserves the identity of the `SingletonType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

25. #### abstract val SuperType: Universe.SuperTypeExtractor

    The constructor/extractor for `SuperType` instances.

26. #### implicit abstract val SuperTypeTag: ClassTag[Universe.SuperType]

    A tag that preserves the identity of the `SuperType` abstract type from erasure.

    A tag that preserves the identity of the `SuperType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

27. #### abstract val ThisType: Universe.ThisTypeExtractor

    The constructor/extractor for `ThisType` instances.

28. #### implicit abstract val ThisTypeTag: ClassTag[Universe.ThisType]

    A tag that preserves the identity of the `ThisType` abstract type from erasure.

    A tag that preserves the identity of the `ThisType` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

29. #### abstract val TypeBounds: Universe.TypeBoundsExtractor

    The constructor/extractor for `TypeBounds` instances.

30. #### implicit abstract val TypeBoundsTag: ClassTag[Universe.TypeBounds]

    A tag that preserves the identity of the `TypeBounds` abstract type from erasure.

    A tag that preserves the identity of the `TypeBounds` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

31. #### abstract val TypeRef: Universe.TypeRefExtractor

    The constructor/extractor for `TypeRef` instances.

32. #### implicit abstract val TypeRefTag: ClassTag[Universe.TypeRef]

    A tag that preserves the identity of the `TypeRef` abstract type from erasure.

    A tag that preserves the identity of the `TypeRef` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

33. #### implicit abstract val TypeTagg: ClassTag[Universe.Type]

    A tag that preserves the identity of the `Type` abstract type from erasure.

    A tag that preserves the identity of the `Type` abstract type from erasure. Can be used for pattern matching, instance tests, serialization and likes.

34. #### abstract val WildcardType: Universe.Type

    An object representing an unknown type, used during type inference.

    An object representing an unknown type, used during type inference. If you see WildcardType outside of inference it is almost certainly a bug.

35. #### abstract def appliedType(tycon: Universe.Type, args: List[Universe.Type]): Universe.Type

    A creator for type applications

36. #### abstract def existentialAbstraction(tparams: List[Universe.Symbol], tpe0: Universe.Type): Universe.Type

    A creator for existential types.

    A creator for existential types. This generates:

        tpe1 where { tparams }

    where `tpe1` is the result of extrapolating `tpe` with regard to `tparams`. Extrapolating means that type variables in `tparams` occurring in covariant positions are replaced by upper bounds, (minus any SingletonClass markers), type variables in `tparams` occurring in contravariant positions are replaced by upper bounds, provided the resulting type is legal with regard to stability, and does not contain any type variable in `tparams`.

    The abstraction drops all type parameters that are not directly or indirectly referenced by type `tpe1`. If there are no remaining type parameters, simply returns result type `tpe`.

37. #### abstract def glb(ts: List[Universe.Type]): Universe.Type

    The greatest lower bound of a list of types, as determined by `<:<`.

38. #### abstract def intersectionType(tps: List[Universe.Type], owner: Universe.Symbol): Universe.Type

    A creator for intersection type where intersections of a single type are replaced by the type itself, and repeated parent classes are merged.

    A creator for intersection type where intersections of a single type are replaced by the type itself, and repeated parent classes are merged.

    !!! Repeated parent classes are not merged - is this a bug in the comment or in the code?

39. #### abstract def intersectionType(tps: List[Universe.Type]): Universe.Type

    A creator for intersection type where intersections of a single type are replaced by the type itself.

40. #### abstract def lub(xs: List[Universe.Type]): Universe.Type

    The least upper bound of a list of types, as determined by `<:<`.

41. #### abstract def polyType(tparams: List[Universe.Symbol], tpe: Universe.Type): Universe.Type

    A creator for type parameterizations that strips empty type parameter lists.

    A creator for type parameterizations that strips empty type parameter lists. Use this factory method to indicate the type has kind * (it's a polymorphic value) until we start tracking explicit kinds equivalent to typeFun (except that the latter requires tparams nonEmpty).

42. #### abstract def refinedType(parents: List[Universe.Type], owner: Universe.Symbol): Universe.Type

    The canonical creator for a refined type with an initially empty scope.

43. #### abstract def refinedType(parents: List[Universe.Type], owner: Universe.Symbol, decls: Universe.Scope, pos: Universe.Position): Universe.Type

    the canonical creator for a refined type with a given scope

44. #### abstract def singleType(pre: Universe.Type, sym: Universe.Symbol): Universe.Type

    The canonical creator for single-types

45. #### abstract def typeRef(pre: Universe.Type, sym: Universe.Symbol, args: List[Universe.Type]): Universe.Type

    The canonical creator for typerefs

### Concrete Value Members

1. #### final def !=(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

2. #### final def !=(arg0: Any): Boolean

   Test two objects for inequality.

   Test two objects for inequality.

   returns

     `true` if !(this == that), false otherwise.

   Definition Classes
     Any

3. #### final def ##(): Int

   Equivalent to `x.hashCode` except for boxed numeric types and `null`.

   Equivalent to `x.hashCode` except for boxed numeric types and `null`. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For `null` returns a hashcode where `null.hashCode` throws a `NullPointerException`.

   returns

     a hash value consistent with ==

   Definition Classes
     AnyRef → Any

4. #### def +(other: String): String

   Implicit information
     This member is added by an implicit conversion from Types to StringAdd performed by method any2stringadd in scala.Predef.
   Definition Classes
     StringAdd

5. #### def ->[B](y: B): (Types, B)

   Implicit information
     This member is added by an implicit conversion from Types to ArrowAssoc[Types] performed by method any2ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()

6. #### final def ==(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

7. #### final def ==(arg0: Any): Boolean

   Test two objects for equality.

   Test two objects for equality. The expression `x == that` is equivalent to `if (x eq null) that eq null else x.equals(that)`.

   returns

     `true` if the receiver object is equivalent to the argument; `false` otherwise.

   Definition Classes
     Any

8. #### final def asInstanceOf[T0]: T0

   Cast the receiver object to be of type `T0`.

   Cast the receiver object to be of type `T0`.

   Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression `1.asInstanceOf[String]` will throw a `ClassCastException` at runtime, while the expression `List(1).asInstanceOf[List[String]]` will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

   returns

     the receiver object.

   Definition Classes
     Any
   Exceptions thrown
     ClassCastException

     if the receiver object is not an instance of the erasure of type `T0`.

9. #### def clone(): AnyRef

   Create a copy of the receiver object.

   Create a copy of the receiver object.

   The default implementation of the `clone` method is platform dependent.

   returns

     a copy of the receiver object.

   Attributes
     protected[java.lang]
   Definition Classes
     AnyRef
   Annotations
     @throws( ... )
   Note

     not specified by SLS as a member of AnyRef

10. #### def ensuring(cond: (Types) ⇒ Boolean, msg: ⇒ Any): Types

    Implicit information
      This member is added by an implicit conversion from Types to Ensuring[Types] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

11. #### def ensuring(cond: (Types) ⇒ Boolean): Types

    Implicit information
      This member is added by an implicit conversion from Types to Ensuring[Types] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

12. #### def ensuring(cond: Boolean, msg: ⇒ Any): Types

    Implicit information
      This member is added by an implicit conversion from Types to Ensuring[Types] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

13. #### def ensuring(cond: Boolean): Types

    Implicit information
      This member is added by an implicit conversion from Types to Ensuring[Types] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

14. #### final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (`arg0`) is a reference to the receiver object (`this`).

    Tests whether the argument (`arg0`) is a reference to the receiver object (`this`).

    The `eq` method implements an equivalence relation on non-null instances of `AnyRef`, and has three additional properties:

    - It is consistent: for any non-null instances `x` and `y` of type `AnyRef`, multiple invocations of `x.eq(y)` consistently returns `true` or consistently returns `false`.
    - For any non-null instance `x` of type `AnyRef`, `x.eq(null)` and `null.eq(x)` returns `false`.
    - `null.eq(null)` returns `true`.

    When overriding the `equals` or `hashCode` methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (`o1 eq o2`), they should be equal to each other (`o1 == o2`) and they should hash to the same value (`o1.hashCode == o2.hashCode`).

    returns

      `true` if the argument is a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef

15. #### def equals(arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to `eq`.

    See also `equals` in scala.Any.

    returns

      `true` if the receiver object is equivalent to the argument; `false` otherwise.

    Definition Classes
      AnyRef → Any

16. #### def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the `finalize` method is invoked, as well as the interaction between `finalize` and non-local returns and exceptions, are all platform dependent.

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
    Note

      not specified by SLS as a member of AnyRef

17. #### def formatted(fmtstr: String): String

    Returns string formatted according to given `format` string.

    Returns string formatted according to given `format` string. Format strings are as for `String.format` (@see java.lang.String.format).

    Implicit information
      This member is added by an implicit conversion from Types to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()

18. #### final def getClass(): Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

      a representation that corresponds to the dynamic class of the receiver object.

    Definition Classes
      AnyRef → Any
    Note

      not specified by SLS as a member of AnyRef

19. #### def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

      the hash code value for this object.

    Definition Classes
      AnyRef → Any

20. #### final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is `T0`.

    Test whether the dynamic type of the receiver object is `T0`.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression `1.isInstanceOf[String]` will return `false`, while the expression `List(1).isInstanceOf[List[String]]` will return `true`. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

      `true` if the receiver object is an instance of erasure of type `T0`; `false` otherwise.

    Definition Classes
      Any

21. #### final def ne(arg0: AnyRef): Boolean

    Equivalent to `!(this eq that)`.

    Equivalent to `!(this eq that)`.

    returns

      `true` if the argument is not a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef

22. #### final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Note

      not specified by SLS as a member of AnyRef

23. #### final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Note

      not specified by SLS as a member of AnyRef

24. #### final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
      AnyRef

25. #### def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

      a String representation of the object.

    Definition Classes
      AnyRef → Any

26. #### final def wait(): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

27. #### final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

28. #### final def wait(arg0: Long): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

29. #### def →[B](y: B): (Types, B)

    Implicit information
      This member is added by an implicit conversion from Types to ArrowAssoc[Types] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Shadowed Implicit Value Members

1. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from Types to StringAdd performed by method any2stringadd in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (types: StringAdd).self

   Definition Classes
     StringAdd

2. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from Types to StringFormat performed by method any2stringfmt in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (types: StringFormat).self

   Definition Classes
     StringFormat

### Deprecated Value Members

1. #### def x: Types

   Implicit information
     This member is added by an implicit conversion from Types to ArrowAssoc[Types] performed by method any2ArrowAssoc in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (types: ArrowAssoc[Types]).x

   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `leftOfArrow`instead``

2. #### def x: Types

   Implicit information
     This member is added by an implicit conversion from Types to Ensuring[Types] performed by method any2Ensuring in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (types: Ensuring[Types]).x

   Definition Classes
     Ensuring
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `resultOfEnsuring`instead``

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Types to StringAdd

### Inherited by implicit conversion any2stringfmt from Types to StringFormat

### Inherited by implicit conversion any2ArrowAssoc from Types to ArrowAssoc[Types]

### Inherited by implicit conversion any2Ensuring from Types to Ensuring[Types]

### Types - Creation

### Types - Operations

### Types

### API

The methods available for each reflection entity, without the implementation. Since the reflection entities are later overridden by runtime reflection and macros, their API counterparts guarantee a minimum set of methods that are implemented.

### Extractors

Extractors provide the machinery necessary to allow pattern matching and construction of reflection entities that is similar to case classes, although the entities are only abstract types that are later overridden.

### Tags

Implicit values that provide `ClassTags` for the reflection classes. These are abstract in the interface but are later filled in to provide ClassTags for the either the runtime reflection or macros entities, depending on the use.

### Ungrouped